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PATENTBD FEB. 9, 1904.

A. 0. E. RATEAU. VAPOR GENERATOR. APPLIOATION FILED my 21, 1903.

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the cooling liquid instead of simply heating it.

1 two compartments 1 and 2 into communica- UNITED STATES Patented February 9,--,19Qd."';

AUGUSTE GAMBLE EDMOND BATEAU, OF PARIS, FRANCE.

VAPOR-GENERATOR- SPEGIFIGATION forming part of Letters latent No. 751,998, dated February 9, 1904.

Original. application filed March 26, 1902, Serial No. 99,923. Divided and this application filed May 21, 1903. Serial No. 158,181.

(No model.)

and the like, and producing steam. To do this, it is necessary to separate the two fluids by means of a metal wall, andthe apparatus is then based upon the principle of a surface condenser and arranged in order to vaporize It is well known that these condensers are composedof iron or brass tubes arranged in a group in a body of cylindrical or other suitable form. The escaping steam to be condensed is brought into the tubes, and I place round the tubes the liquid to be vaporized. As the apparatus has to serve as an accumulator, it must necessarily contain a great weight of liquid forming a heat-carrier, and'as it is,

p on the other hand, convenient to let the tempcratu re between the flowing steam and that supplied by the apparatus fall as little as possible it will be useful to have a relatively elevated surface of tubes.

The annexed drawings show a steam regenerative'accumulator based upon the use of a The-boiler is divided by aid of two walls 44 into three compartments 1, 2, and 3. :The central compartment 3 is nearly completely filled up with a liquid to be vaporized and is fitted with a number of tubes 5, putting the compartment 1 through the inlet-pipe 6. The

liquid to be vaporized regularly is introduced into the central compartment 3 through the pipe 7 and the generated vapor is conducted through the pipe 8, provided with a valve, to the machine which is to be actuated. The water resulting from the condensation of the steam in the tubes 5 flows into the compartment 2, out of which it is expelled through an outflow 9. The air may be expelled through an automatic valve 10.

11 designates an outflow for the compartment 1.

In order to increase the circulation of the vaporizing liquid around thetubes 5, a longi tudinal plate 12, forming, as in my former ap' plication, a central shaft, is placed on each side of the group of tubes. The vapor generated in proximity of the tubes 5 in said central shaft causes the circulation of the vaporizing liquid as shown by the arrows on the drawmgs.

The accumulation of vapor takes place during the intermittences of the inlet of steam through pipe 6, owing to the weight of liquid contained in the boiler and to the variations of pressure and temperature.

It will be observed that in the abovedescribed apparatus the intermittent current of steam is led into the tubes of the boiler, while the vaporizing liquid is contained in the boiler around the said tubes. It will be obvious that the apparatus could be indifierently used in this way or'in an inverted manner, the vaporizing liquid being in this case introduced into the tubes, While the intermittent current of steam would be introduced into the boiler around the tubes. The result would be the same without any change to the apparatus.

What I claim isp p 1. In a steam regenerative accumulator a boiler, two walls dividing the boiler into three compartments, a group of tubes placed in the central compartment and putting the end compartments in communication with each other,

. an inlet-pipe for the current of steam, an out- 1et-pipe for the generated vapor, and longitubes, substantially as described and for the purpose set forth.

'tudinal plates on each side of the group of 2 I v .1 751,998 a 2. A steam regenerative accumulator, come prising a boiler the longitudinal axis of which is slightly inclined, two walls dividing the boiler into a central and two end compartments, a group of tubes placed in the central compartment and putting the end compartments in communication with each other, an inlet-pipe for the introduction of an inter1cnit tent current of steam into the group of tubes, an outlet-pipe for the vapor generated in the central compartment, longitudinal plates on each side of the group of tubes the said plates forming a central shaft in the central cornpartment so as to cause the circulation of a heat-carrier liquid around the tubular group 5 and an outflow-pipe for the water condensed in the group of tubes substantially as described and for the purpose set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

AUGUSTE CAMILLE EDMOND RATEAU.

Witnesses: I

M. Znnono, J. ALLISON Bownn. 

